Hi All -
I think this has been discussed or rumored, but thought I'd document it as verified. I recently listed a pair of deep sixes on eBay and when taking the pics, I noticed that one of the wheels with an early date code (668) has a part # of 901.361.012.04 NOT the Deep Six part # of 901.361.012.06

I'll get some pics tonight that show both the part # and size stampings in the same pic

Regards,
Andrew M